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Wallace and Tiernan, Limited, Toronto.
Chlorine and chemical control equipment for water sterilization, sewage treatment, industrial applications, swimming pools, [and] slime control
![Chlorine and chemical control equipment for water sterilization, sewage treatment, industrial applications, swimming pools, [and] slime control](https://s3.amazonaws.com/readfeedstatic/book_covers/thumbnails/rf-placeholder.png)